72080684 has 12 divisors (see below), whose sum is σ = 135844464. Its totient is φ = 33267984.

The previous prime is 72080683. The next prime is 72080753. The reversal of 72080684 is 48608027.

It is not an unprimeable number, because it can be changed into a prime (72080681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693032 + ... + 693135.

It is an arithmetic number, because the mean of its divisors is an integer number (11320372).

Almost surely, 2^72080684 is an apocalyptic number.

It is an amenable number.

72080684 is a deficient number, since it is larger than the sum of its proper divisors (63763780).

72080684 is a wasteful number, since it uses less digits than its factorization.

72080684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386184 (or 1386182 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 72080684 is about 8490.0343933343. The cubic root of 72080684 is about 416.1721042693.

The spelling of 72080684 in words is "seventy-two million, eighty thousand, six hundred eighty-four".